Heat radiator



Patented Bec. 15, 1936 NETE@ STATES PATENT FFIUE HEAT RADIATOR Application May 8, 1934, Serial No. 724,500

f 1 12 Claims.

Our invention more particularly relates to a heat radiator for use in an automobile or other vehicle, although our invention-is not limited to this particular use.

' One of the objects of our invention is the provision of a heat radiator which is simple in construction and which is compact and efficient in operation.

A speciiic object of our invention is the provision of a radiator comprising two groups of radiating fins in good thermal relation with the steam pipe, the uns of one group being staggered with respect to the other group whereby heat is effectively transferred from the radiating fins to the air which passes thereover.

Other novel features of our invention will appear in the specication and will be particularly pointed out in the claims.

Our invention will best be understood by reference to the accompanying drawing in which we have illustrated a preferred embodiment thereof and in which- Fig. 1 is a side View, partially in section, of a radiator embodying our invention and the parts associated therewith;

Fig. 2 is a rear elevation of the radiator;

Fig. 3 is a section taken along the line 3 3 of Fig. 2; and

Fig. 4 is a section taken along the line 4 4 of Fig. 2.

Like reference characters indicate like parts throughout the drawing.

The radiator embodying our invention is indiv cated generally at IS and comprises a fluid heating pipe I I which is preferably vertically arranged as indicated in Fig. 2, the fluid heating supply pipe I2 being connected to the upper end of said radiator and a return pipe I3 to the lower end. Hollow metallic cross members I4 are preferably provided which are closed at their outer ends as at l5 as best indicated in Fig. e and which' communicate with the said pipe II, the cross members Ill preferably being inclined downwardly and inwardly from their ends to the said pipe I i to permit condensate to drain therefrom.

Two groups of annular radiating ns arranged one within the other and indicated generally at I6 and Il, respectively, are spaced from each other as at I8, individual iins I9 of one group being staggered with respect to those of the other group, the iins of each group being connected to the heating pipe ll and the cross members Iii at spaced points thereof. Referring particularly to Fig. 3 the fins 59| of one group are staggered with respect to the fins |92 of the other group thereby causing the air owing from the ns of one group to the ns of the other group to be impeded and subjected to a turbulent action which mixes the air and brings the various portions thereof into engagement with the fins more effectively than would be the case if the iinswere continuous. In the latter case the portions of the air within the air stream would not find its way to the ns, at least not as effectively as it is in accordance with our invention. Furthermore, by offsetting the uns of one group from those of the other group, the air is caused to impinge against the ns more effectively than would be the case with straight passages.

It will be noted that portions of the radiating fins extend away from the steam pipe, thereby creating openings between the ns through which air may flow.

The outer n of the group Il is preferably provided with a peripherally extending rib 2 forming with the iin a shoulder 2l for a purpose which will hereinafter appear. The front end of the radiator is preferably provided with a forwardly extending lug 22 provided with a tapped opening 23 in which a bolt for the support of an air deflector (not illustrated) is received.

The pipe Il and the cross metallic members Iii are formed about a sand mold while the lns and the remaining portion of the radiator are preferably formed by a permanent metallic mold two portions of which are brought together while a suitable metal such as aluminum or a composition thereof is poured into the mold. 'I'he fins are thus integral with the steam pipe and with the cross metallic members thus being in intimate thermal conducting relation therewith. It will be understood that the spaces between the two groups I6 and Il of radiating ns may be formed by plates in the mold which are removed when the radiator is taken therefrom. When the casting has been formed, the permanent molds are separated and the radiator removed therefrom, and the 'sand removed from the pipe II and the cross arms through openings formed in the4 ends of the said pipe. The fins I@v are preferably tapered as best shown in Figs. 3 and 4, the thinner portions of the ribs being at their .outer extremities to permit the ready removal of the casting from the permanent molds.

It will be understood that the closed ends of the cross metallic members Ill are integral with the direction of the iins thereby extending the metallic portions of said pipe and the cross arms close to the edges of the fins and increasing the heat conductivity from the Said pipe and the cross arms to the ns. We have found, for example, that when the fins of the group I 6 are approximately one inch wide and those of the group I1 approximately one inch and a quarter wide that the pipe Il and the cross arms may advantageously extend to points about three-eighths of an inch from the edges of the fins, although it will of course be understood that our invention is in no wise limited to the dimensions designated. The walls of both the pipe Il and the cross metallic members are preferably of substantially uniform thickness, although it will be understood that the exterior portions of said pipe and of the cross metallic members could be elongated by thickening the walls thereof at the front and rear of the radiator as viewed in Figs. 2 and 3.

A supporting housing 24 may conveniently be received against the rib 20 on the outer iin of the group I 'I and rest on the shoulder 2l, the housing surrounding the group I6 in the manner best shown in Fig. l. The inner end of the housing 24 is preferably provided with inwardly extending brackets 25 to which is secured the housing 26 of an electric motor which actuates the fan 21 which forces air over the radiator, it being understood that air passes through an opening 28 formed in the housing 24.

While we have described our invention in its preferred embodiment, it is to be understood that the words which we have used are words of description rather than of limitation. Hence, changes within the purview of the appended claims may be made without departing from the true scope and spirit of our invention in its broader aspects.

What we claim is:

1. In a radiator, a heating pipe, hollow metallic cross members closed at their ends communicating with said pipe, and a plurality of spaced radiating iins integral with said pipe and with said cross members.

2. In a radiator, a heating pipe, hollow metallic cross members closed at their ends communicating with said pipe and inclined downwardly and inwardly from their ends towards said pipe, and a plurality of spaced radiating iins integral with said pipe and with said cross members.

3. In a radiator, a heating pipe, hollow metallic cross members closed at their ends communicating with said pipe and inclined downwardly and inwardly from their ends towards said pipe, and a plurality of spaced radiating ns integral with said pipe and with said cross members, said pipes and said cross members being elongated in cross section on their exterior in a direction of the planes of said iins.

4. In a heat radiator, a heating pipe, two spaced groups of radiating fins in good thermal conducting relation with said pipe, the fins of one group being staggered with respect to those of the other group, the iins of a given group extending in the same general direction as those of the other group, and means for directing the gas to be heated successively over said groups.

5. In a heat radiator, a heating pipe, two hollow metallic cross members closed at their ends and communicating with said pipe, said cross members being inclined downwardly and inwardly from their ends towards said pipe, two spaced groups of radiating fins each group comprising a plurality of spaced iins in good thermal conducting relation with said pipe, the fins of one group being staggered with respect to those of the other group and said pipe being elongated in cross section on its exterior in a direction of the planes of said ns.

6. In a heat radiator, a heating pipe, two hollow metallic cross members closed at their ends and communicating with said pipe, said cross members being inclined downwardly and inwardly from their ends towards said pipe, two spaced groups of radiating ns each group comprising a plurality of spaced fins integral with said pipe, the ns of one group being staggered with respect to those of the other group and said pipe being elongated in cross section on its exterior in a direction of the planes of said fins.

7. In a heat radiator, a vertically disposed heating pipe, a steam inlet communicating with the upper end of said pipe and a return pipe communicating with the lower end thereof, two hollow metallic cross members closed at their ends and communicating with said pipe, said cross members being inclined downwardly and inwardly from their ends towards said pipe, two spaced groups of radiating fins each group comprising a plurality of spaced iins in good thermal conducting relation with said pipe, the fins of one group being staggered with respect to those of the other group and said vapor pipe being elongated in cross section on its exterior in a direction of the planes of said fins.

8. In a radiator, a heating pipe, hollow metallic cross members closed at their ends and communicating with said pipe, and a plurality oi' annular spaced radiating fins in intimate thermal conducting relation with said pipe and with said cross members, said pipe being elongated in cross section on its exterior in a direction of planes of said ns.

9. In a radiator, a heating pipe, hollow metallic crossv members closed at their ends and communicating with said pipe, and a plurality of annular spaced radiating ns in intimate thermal conducting relation with said pipe and with said cross members.

10. In a radiator, a heating pipe, hollow metallic cross members closed at their ends and communicating with said pipe, and a plurality of annular spaced radiating ns in intimate thermal conducting relation with said pipe and with said cross members.

11. In a heat radiator, a heating pipe, a plu rality of annular radiating fins in good thermal relation to said pipe and arranged one within the other in the same general plane, said ns having portions extending away from said pipe whereby air may ow between said ns.

12. In a heat radiator, a heating pipe, a plurality of annular radiating iins in good thermal relation to said pipe and arranged one within the other in the same general plane, said ns having portions extending away from said pipe, whereby air may fiow between said ns, said pipe being elongated on its exterior in a direction of the planes of said fins.

CLAUDE G. BORDEAUX. FORREST S. WHITE. 

